linux-stable/drivers/mfd/da9052-spi.c
Linus Torvalds bc914532a0 - New Device Support
- Add support for 88pm860; 88pm80x
    - Add support for 24c08 EEPROM; at24
    - Add support for Broxton Whiskey Cove; intel*
    - Add support for RTS522A; rts5227
    - Add support for I2C devices; intel_quark_i2c_gpio
  - New Functionality
    - Add microphone support; arizona
    - Add general purpose switch support; arizona
    - Add fuel-gauge support; da9150-core
    - Add shutdown support; sec-core
    - Add charger support; tps65217
    - Add flexible serial communication unit support; atmel-flexcom
    - Add power button support; axp20x
    - Add led-flash support; rt5033
  - Core Frameworks
    - Supply a generic macro for defining Regmap IRQs
    - Rework ACPI child device matching
  - Fix-ups
    - Use Regmap to access registers; tps6105x
    - Use DEFINE_RES_IRQ_NAMED() macro; da9150
    - Re-arrange device registration order; intel_quark_i2c_gpio
    - Allow OF matching; cros_ec_i2c, atmel-hlcdc, hi6421-pmic, max8997, sm501
    - Handle deferred probe; twl6040
    - Improve accuracy of headphone detect; arizona
    - Unnecessary MODULE_ALIAS() removal; bcm590xx, rt5033
    - Remove unused code; htc-i2cpld, arizona, pcf50633-irq, sec-core
    - Simplify code; kempld, rts5209, da903x, lm3533, da9052, arizona
    - Remove #iffery; arizona
    - DT binding adaptions; many
  - Bug Fixes
    - Fix possible NULL pointer dereference; wm831x, tps6105x
    - Fix 64bit bug; intel_soc_pmic_bxtwc
    - Fix signedness issue; arizona
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Merge tag 'mfd-for-linus-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Device Support:
   - Add support for 88pm860; 88pm80x
   - Add support for 24c08 EEPROM; at24
   - Add support for Broxton Whiskey Cove; intel*
   - Add support for RTS522A; rts5227
   - Add support for I2C devices; intel_quark_i2c_gpio

  New Functionality:
   - Add microphone support; arizona
   - Add general purpose switch support; arizona
   - Add fuel-gauge support; da9150-core
   - Add shutdown support; sec-core
   - Add charger support; tps65217
   - Add flexible serial communication unit support; atmel-flexcom
   - Add power button support; axp20x
   - Add led-flash support; rt5033

  Core Frameworks:
   - Supply a generic macro for defining Regmap IRQs
   - Rework ACPI child device matching

  Fix-ups:
   - Use Regmap to access registers; tps6105x
   - Use DEFINE_RES_IRQ_NAMED() macro; da9150
   - Re-arrange device registration order; intel_quark_i2c_gpio
   - Allow OF matching; cros_ec_i2c, atmel-hlcdc, hi6421-pmic, max8997, sm501
   - Handle deferred probe; twl6040
   - Improve accuracy of headphone detect; arizona
   - Unnecessary MODULE_ALIAS() removal; bcm590xx, rt5033
   - Remove unused code; htc-i2cpld, arizona, pcf50633-irq, sec-core
   - Simplify code; kempld, rts5209, da903x, lm3533, da9052, arizona
   - Remove #iffery; arizona
   - DT binding adaptions; many

  Bug Fixes:
   - Fix possible NULL pointer dereference; wm831x, tps6105x
   - Fix 64bit bug; intel_soc_pmic_bxtwc
   - Fix signedness issue; arizona"

* tag 'mfd-for-linus-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (73 commits)
  bindings: mfd: s2mps11: Add documentation for s2mps15 PMIC
  mfd: sec-core: Remove unused s2mpu02-rtc and s2mpu02-clk children
  extcon: arizona: Add extcon specific device tree binding document
  MAINTAINERS: Add binding docs for Cirrus Logic/Wolfson Arizona devices
  mfd: arizona: Remove bindings covered in new subsystem specific docs
  mfd: rt5033: Add RT5033 Flash led sub device
  mfd: lpss: Add Intel Broxton PCI IDs
  mfd: lpss: Add Broxton ACPI IDs
  mfd: arizona: Signedness bug in arizona_runtime_suspend()
  mfd: axp20x: Add a cell for the power button part of the, axp288 PMICs
  mfd: dt-bindings: Document pulled down WRSTBI pin on S2MPS1X
  mfd: sec-core: Disable buck voltage reset on watchdog falling edge
  mfd: sec-core: Dump PMIC revision to find out the HW
  mfd: arizona: Use correct type ID for device tree config
  mfd: arizona: Remove use of codec build config #ifdefs
  mfd: arizona: Simplify adding subdevices
  mfd: arizona: Downgrade type mismatch messages to dev_warn
  mfd: arizona: Factor out checking of jack detection state
  mfd: arizona: Factor out DCVDD isolation control
  mfd: Make TPS6105X select REGMAP_I2C
  ...
2015-11-06 10:23:50 -08:00

110 lines
2.4 KiB
C

/*
* SPI access for Dialog DA9052 PMICs.
*
* Copyright(c) 2011 Dialog Semiconductor Ltd.
*
* Author: David Dajun Chen <dchen@diasemi.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
*/
#include <linux/device.h>
#include <linux/module.h>
#include <linux/input.h>
#include <linux/mfd/core.h>
#include <linux/spi/spi.h>
#include <linux/err.h>
#include <linux/mfd/da9052/da9052.h>
static int da9052_spi_probe(struct spi_device *spi)
{
struct regmap_config config;
int ret;
const struct spi_device_id *id = spi_get_device_id(spi);
struct da9052 *da9052;
da9052 = devm_kzalloc(&spi->dev, sizeof(struct da9052), GFP_KERNEL);
if (!da9052)
return -ENOMEM;
spi->mode = SPI_MODE_0;
spi->bits_per_word = 8;
spi_setup(spi);
da9052->dev = &spi->dev;
da9052->chip_irq = spi->irq;
spi_set_drvdata(spi, da9052);
config = da9052_regmap_config;
config.read_flag_mask = 1;
config.reg_bits = 7;
config.pad_bits = 1;
config.val_bits = 8;
config.use_single_rw = 1;
da9052->regmap = devm_regmap_init_spi(spi, &config);
if (IS_ERR(da9052->regmap)) {
ret = PTR_ERR(da9052->regmap);
dev_err(&spi->dev, "Failed to allocate register map: %d\n",
ret);
return ret;
}
return da9052_device_init(da9052, id->driver_data);
}
static int da9052_spi_remove(struct spi_device *spi)
{
struct da9052 *da9052 = spi_get_drvdata(spi);
da9052_device_exit(da9052);
return 0;
}
static struct spi_device_id da9052_spi_id[] = {
{"da9052", DA9052},
{"da9053-aa", DA9053_AA},
{"da9053-ba", DA9053_BA},
{"da9053-bb", DA9053_BB},
{"da9053-bc", DA9053_BC},
{}
};
static struct spi_driver da9052_spi_driver = {
.probe = da9052_spi_probe,
.remove = da9052_spi_remove,
.id_table = da9052_spi_id,
.driver = {
.name = "da9052",
},
};
static int __init da9052_spi_init(void)
{
int ret;
ret = spi_register_driver(&da9052_spi_driver);
if (ret != 0) {
pr_err("Failed to register DA9052 SPI driver, %d\n", ret);
return ret;
}
return 0;
}
subsys_initcall(da9052_spi_init);
static void __exit da9052_spi_exit(void)
{
spi_unregister_driver(&da9052_spi_driver);
}
module_exit(da9052_spi_exit);
MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
MODULE_DESCRIPTION("SPI driver for Dialog DA9052 PMIC");
MODULE_LICENSE("GPL");